
where \(p_i^{(c)}\)  is the probability that an edge carries a failure message in the \(i\) th iteration given that it is connected to an RE node with collision factor \(c\) .
DE is applicable as \({M}\)  and \(T \rightarrow \infty \)  with \(L={M}/T\)  kept fixed [1]}.
Hence the above probability is computed as an infinite summation.
